<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
    <script src="bootstrap/js/jquery.min.js"></script>
    <script src="bootstrap/js/bootstrap.min.js"></script>
    <style>
        body {
            height: 2000px;
        }
    </style>
</head>

<body>
  



        <!-- // 导航条组件 -->


        <nav class="navbar navbar-inverse navbar-fixed-bottom">
            <div class="container">
                <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header">
                    <!-- 移动端显示的 -->
                    <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                        data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a class="navbar-brand" href="#">黑马程序员</a>
                </div>

                <!-- Collect the nav links, forms, and other content for toggling -->
                <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                    <ul class="nav navbar-nav">
                        <li ><a href="#">首页 <span class="sr-only">(current)</span></a></li>
                        <li class="active"><a href="#">公司简介</a></li>
                        <li class="dropdown">
                            <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                                aria-haspopup="true" aria-expanded="false">前端 <span class="caret"></span></a>
                            <ul class="dropdown-menu">
                                <li><a href="#">Action</a></li>
                                <li><a href="#">Another action</a></li>
                                <li><a href="#">Something else here</a></li>
                                <li role="separator" class="divider"></li>
                                <li><a href="#">Separated link</a></li>
                                <li role="separator" class="divider"></li>
                                <li><a href="#">One more separated link</a></li>
                            </ul>
                        </li>
                    </ul>
                    <ul class="nav navbar-nav navbar-right">
                        <li><a href="#">Link</a></li>
                        <li class="dropdown">
                            <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                                aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
                            <ul class="dropdown-menu">
                                <li><a href="#">Action</a></li>
                                <li><a href="#">Another action</a></li>
                                <li><a href="#">Something else here</a></li>
                                <li role="separator" class="divider"></li>
                                <li><a href="#">Separated link</a></li>
                            </ul>
                        </li>
                    </ul>
                </div>
                <!-- /.navbar-collapse -->
            </div>
            <!-- /.container-fluid -->
        </nav>


    <script>
        // 当我们点击了自己定义的按钮，就弹出模态框
        $(".myBtn").on("click", function () {
            // alert(11);
            $('#btn').modal()
        })
    </script>

</body>

</html>